MPA Electrical 15404 Alternator

Remanufactured 150 Amp Alternator

MPA Electrical Part Number 15404 is a remanufactured alternator built for 12-volt charging systems with a 150 amp output. It uses an internal regulator, internal fan, clockwise rotation, and a 6-groove serpentine clutch pulley for applications that require this Bosch/Valeo-style configuration.

This remanufactured product line focuses on restoring charging performance for vehicles that need a direct-fit alternator replacement with the correct amperage and pulley setup. For Audi A4 and Audi A4 Quattro applications, the 15404 is specified for 150 amp fitment where noted.

Key Features

• 150 amp output for 12-volt charging systems
• Internal regulator for integrated voltage control
• Internal fan design
• 6-groove serpentine clutch pulley
• Clockwise rotation
• Bosch/Valeo manufacturer style
• Remanufactured electrical component

Fitment Details

• Fits 2002-2009 Audi A4, N/A; 150 Amp Alternator required for proper fitment.
• Fits 2009 Audi A4 Quattro, N/A; w/ 150 Alternator.
• Fits 2002-2008 Audi A4 Quattro, N/A; 150 Amp Alternator required for proper fitment.
• Fits 2006 Audi A4, N/A; w/ 120 Amp Alternator.
• Fits 2005 Audi A4, N/A.
• Fits 2005 Audi A4 Quattro, N/A.

What This Alternator Helps Resolve

• Battery warning lights caused by weak charging output
• Low system voltage during driving or idle
• Charging failure from a worn internal regulator
• Accessory performance issues tied to unstable electrical supply
• Noise or pulley-related charging concerns on the original unit

Installation Notes

Verify the vehicle’s original alternator amperage before ordering, since some Audi A4 and Audi A4 Quattro applications require a 150 amp unit for proper fitment. Confirm pulley style, rotation, and connector match the removed alternator before installation. This part cross-references BBB Industries 11070 and Remy 11064 for the same application.

Quality Assurance

MPA Electrical remanufactured components are rebuilt to restore charging-system function with the correct electrical and mechanical specifications for the application. Part Number 15404 is built around the Bosch/Valeo alternator design used in the listed Audi fitments.